Home / 3,189.85-4,400.19-2,008.87

Finding the Fourth Proportional to 3,189.85, 4,400.19 and 2,008.87

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Solution

The fourth proportional to 3,189.85, 4,400.19 and 2,008.87 is: 2,771.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189.85 : 4,400.19 = 2,008.87 : x
  2. Step 2: Convert to fraction form
    3,189.85/4,400.19 = 2,008.87/x
  3. Step 3: Cross multiply
    3,189.85x = 4,400.19 × 2,008.87
  4. Step 4: Simplify right side
    3,189.85x = 8,839,409.69
  5. Step 5: Solve for x
    x = 8,839,409.69/3,189.85
  6. Step 6: Final answer
    x = 2,771.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.